Re: Digital television and the sun

On Jul 20, 3:59 pm, Doug Smith W9WI <w...@xxxxxxxxxxxxxx> wrote:
On Sun, 20 Jul 2008 10:46:29 -0700, Dave Platt wrote:
I've also had problems with amps of this sort when there's a radio
transmitter nearby... the strong signal from a transmitter will
saturate the amplifer, causing interference and signal loss on all of
the channels going through the amp.

That's a VERY good point, and it brings up another question for Chuck B:
when the digital reception is messed up, does it *stay* messed up
continuously, or does it work OK for awhile and then go bad & then come
back again?

Most radio transmitters either operate continuously day and night, or
operate intermittently.  (I talk for a few seconds, then let go of the
mike & let the other guy talk)  If the interference is intermittent, maybe
it's coming from a transmitter at a business that only uses it during the
day?  (construction firm, factory, etc.)

If there is an amplifier, it might be worthwhile taking it out of the
circuit for awhile.  You might lose some channels altogether but if it
allows the stations that do come in to continue to come in during the day
then you have a pretty good lead.

If you could borrow another tv set, it would be worthwhile to see if
it too fails. There are differences in propogation characteristics
from day to night that do affect the UHF frequencies. With a good
strong signal, they will not be apparent. But with digita signals and
receivers, it is an all or nothing situation, sorry.

Bob Hofmannl
.

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